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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

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